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CA928007A - Chemical recovery process - Google Patents

Chemical recovery process

Info

Publication number
CA928007A
CA928007A CA100991A CA100991A CA928007A CA 928007 A CA928007 A CA 928007A CA 100991 A CA100991 A CA 100991A CA 100991 A CA100991 A CA 100991A CA 928007 A CA928007 A CA 928007A
Authority
CA
Canada
Prior art keywords
recovery process
chemical recovery
chemical
recovery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA100991A
Other versions
CA100991S (en
Inventor
H. Rapson William
W. Reeve Douglas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erco Envirotech Ltd
Original Assignee
Erco Envirotech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erco Envirotech Ltd filed Critical Erco Envirotech Ltd
Application granted granted Critical
Publication of CA928007A publication Critical patent/CA928007A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • D21C11/122—Treatment, e.g. dissolution, of the smelt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/08—Chlorine-containing liquid regeneration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor
CA100991A 1969-12-30 1970-12-18 Chemical recovery process Expired CA928007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6317369 1969-12-30

Publications (1)

Publication Number Publication Date
CA928007A true CA928007A (en) 1973-06-12

Family

ID=10488830

Family Applications (1)

Application Number Title Priority Date Filing Date
CA100991A Expired CA928007A (en) 1969-12-30 1970-12-18 Chemical recovery process

Country Status (2)

Country Link
US (1) US3740308A (en)
CA (1) CA928007A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196043A (en) * 1970-12-21 1980-04-01 Scott Paper Company Kraft pulp bleaching and recovery process
FI53728C (en) * 1974-03-12 1978-07-10 Ahlstroem Oy FOERFARANDE FOER AOTERVINNING AV KEMIKALIER UR AVLUTAR FRAON SULFATCELLULOSAKOK OCH AVFALLSVATTEN FRAON BLEKNING
US5705031A (en) * 1994-06-15 1998-01-06 Kvaerner Pulping Technologies Ab Process for removing and washing dregs from green liquor in a kraft pulp mill

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743080A (en) * 1926-03-22 1930-01-07 Bradley Mckeefe Corp Manufacture of pulp and treatment of residual liquors, etc.
US1906886A (en) * 1927-11-23 1933-05-02 Brown Co Process of recovering and utilizing the valuable compounds in spent cooking liquors
US2642399A (en) * 1949-02-23 1953-06-16 Robert S Aries Process for dissolving ash containing sodium sulfide and sodium carbonate
US2812245A (en) * 1954-02-15 1957-11-05 Fmc Corp Sodium sulfide recovery
US2862887A (en) * 1955-10-03 1958-12-02 Western Preciptation Corp Process for production and separation of sodium sulfide and sodium carbonate from spent liquors
GB1010296A (en) * 1961-08-25 1965-11-17 Eimco Corp Improvements in or relating to aqueous caustic soda production
FR1375278A (en) * 1962-09-15 1964-10-16 Dominion Tar & Chemical Co Improvements in the manufacture of cellulose pulps
US3268388A (en) * 1963-08-20 1966-08-23 Glatfelter Co P H Manufacture of calcium carbonate
US3366534A (en) * 1964-08-14 1968-01-30 Hooker Chemical Corp Complete chemical system for a kraft mill
GB1106841A (en) * 1965-01-25 1968-03-20 Electric Reduction Co Process for the production of bleached pulp
US3617434A (en) * 1967-05-31 1971-11-02 Mitsubishi Heavy Ind Ltd Regeneration of cooking chemicals from spent alkaline cooking liquor

Also Published As

Publication number Publication date
US3740308A (en) 1973-06-19

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